Hi there -- I have the same issue, five month old daughter who sleeps 12 hours a night, but only naps most days for 30 minutes at a time (sometimes longer, but not much). In the BW Solves Your Problems book, Tracy says that if your LO is taking short naps, BUT is content and happy throughout the day and sleeping well at night, then you don't really have a nap problem. Instead, you have a baby who doesn't require a lot of daytime sleep. My daughter is content and happy throughout the day and never irritable, even though she sleeps relatively very little in the day (no more than 2 hours total, across 2 and sometimes 3 naps). At night, sometimes she wakes up at 5am for a quick feeding and then back to bed, and other times she sleeps straight through until 7-7:30am. So how is your daughter's temperament through the day?
Jana